Setting Up Microsoft 365 for Your Business + Step-by-Step

If you're running a small business in Somerset or anywhere in the UK, having professional email and secure cloud tools is no longer optional. Microsoft 365 gives you business-grade email, file storage, Teams, and security — all in one system.

Step 1: Choose the Right Microsoft 365 Plan

Most trades and small businesses only need Microsoft 365 Business Basic or Business Standard.

• Business Basic – Professional email + cloud apps
• Business Standard – Includes desktop versions of Word & Excel

If you’re unsure, Business Standard is usually the safest choice for growing businesses.

Step 2: Connect Your Domain Name

To use emails like info@yourbusiness.co.uk, you must connect your domain to Microsoft 365.

This involves updating DNS records at your domain provider:

• MX record (email routing)
• TXT record (verification)
• SPF record (email protection)

This is where many business owners get stuck — a small DNS mistake can break your website or email delivery.

Step 3: Create User Accounts & Mailboxes

Once the domain is verified, create user accounts for each team member. Assign licences and set strong passwords with multi-factor authentication enabled.

Step 4: Secure Your Business

Security is critical. At minimum, you should:

• Enable Multi-Factor Authentication (MFA)
• Configure anti-spam & anti-phishing policies
• Set up conditional access rules
• Restrict admin privileges

Many small businesses skip this stage — which leaves them vulnerable to phishing and account breaches.

Step 5: Configure Shared Mailboxes

Shared mailboxes like sales@ or accounts@ allow multiple staff to manage enquiries efficiently.

These do not require additional licences and are ideal for trades businesses.

Common Mistakes When Setting Up Microsoft 365

• Incorrect DNS configuration
• No SPF/DKIM setup
• No backup solution
• Weak password policies

Fixing these later is more complicated than setting things up properly from the start.

Should You Set It Up Yourself?

You can set up Microsoft 365 yourself — but many business owners prefer professional setup to avoid downtime, email loss or security issues.